asm_support.h revision 63bc11efaac0c041e849ab401f9fc368631a00f5 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ART_RUNTIME_ASM_SUPPORT_H_
18#define ART_RUNTIME_ASM_SUPPORT_H_
19
20#include "read_barrier_c.h"
21
22// Value loaded into rSUSPEND for quick. When this value is counted down to zero we do a suspend
23// check.
24#define SUSPEND_CHECK_INTERVAL (1000)
25
26// Offsets within java.lang.Object.
27#define CLASS_OFFSET 0
28#define LOCK_WORD_OFFSET 4
29
30#if !defined(USE_BAKER_OR_BROOKS_READ_BARRIER)
31
32// Offsets within java.lang.Class.
33#define CLASS_COMPONENT_TYPE_OFFSET 12
34
35// Array offsets.
36#define ARRAY_LENGTH_OFFSET 8
37#define OBJECT_ARRAY_DATA_OFFSET 12
38
39// Offsets within java.lang.String.
40#define STRING_VALUE_OFFSET 8
41#define STRING_COUNT_OFFSET 12
42#define STRING_OFFSET_OFFSET 20
43#define STRING_DATA_OFFSET 12
44
45// Offsets within java.lang.Method.
46#define METHOD_DEX_CACHE_METHODS_OFFSET 12
47#if defined(ART_USE_PORTABLE_COMPILER)
48#define METHOD_PORTABLE_CODE_OFFSET 40
49#define METHOD_QUICK_CODE_OFFSET 48
50#else
51#define METHOD_PORTABLE_CODE_OFFSET 40
52#define METHOD_QUICK_CODE_OFFSET 40
53#endif  // ART_USE_PORTABLE_COMPILER
54
55#else
56
57// Offsets within java.lang.Class.
58#define CLASS_COMPONENT_TYPE_OFFSET 20
59
60// Array offsets.
61#define ARRAY_LENGTH_OFFSET 16
62#define OBJECT_ARRAY_DATA_OFFSET 20
63
64// Offsets within java.lang.String.
65#define STRING_VALUE_OFFSET 16
66#define STRING_COUNT_OFFSET 20
67#define STRING_OFFSET_OFFSET 28
68#define STRING_DATA_OFFSET 20
69
70// Offsets within java.lang.Method.
71#define METHOD_DEX_CACHE_METHODS_OFFSET 20
72#define METHOD_PORTABLE_CODE_OFFSET 48
73#define METHOD_QUICK_CODE_OFFSET 56
74
75#endif  // USE_BAKER_OR_BROOKS_READ_BARRIER
76
77#endif  // ART_RUNTIME_ASM_SUPPORT_H_
78